Use a client like qBittorrent to open the .torrent file and download the actual MS.7z archive.
Documentation on LZMA compression (used by 7-Zip) explains how these massive datasets are efficiently stored. 2. Microsoft Software or Datasets
Large-scale research datasets (like MS-COCO for computer vision) are sometimes distributed via torrent to manage high bandwidth.
Based on common naming conventions in technical communities, "MS" in this context often refers to one of the following: 1. Markov State Models (MSMs)